Displacement fields of wood in tension based on image processing: Part 1. Tension parallel- and perpendicular- to grain and comparisons with isotropic behaviour
Displacement fields for tensile loaded rubber and wood in parallel- and perpendicular-to-grain were obtained from digital image correlation. The results showed that the digital image correlation can reveal fine details of the nature of displacements in both rubber and wood. It was found that whe...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Finnish Society of Forest Science
2000-01-01
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| Series: | Silva Fennica |
| Online Access: | https://www.silvafennica.fi/article/629 |
| _version_ | 1818325889513947136 |
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| author | Samarasinghe, S. Kulasiri, G. |
| author_facet | Samarasinghe, S. Kulasiri, G. |
| author_sort | Samarasinghe, S. |
| collection | DOAJ |
| description | Displacement fields for tensile loaded rubber and wood in parallel- and perpendicular-to-grain were obtained from digital image correlation. The results showed that the digital image correlation can reveal fine details of the nature of displacements in both rubber and wood. It was found that when load is perpendicular-to-grain, the lignin matrix produces uniform displacement fields similar to that of isotropic rubber. Uniform displacement fields also observed when lignin is involved in contraction due to Poisson effect in parallel-to-grain tension. However, when tracheids carry the load in parallel-to-grain loading, or are compressed in perpendicular-to-grain loading, a complex displacement pattern distorted by internal shear stress and slippage is produced. |
| first_indexed | 2024-12-13T11:51:39Z |
| format | Article |
| id | doaj.art-d31504a7a386463caef9c561414fa519 |
| institution | Directory Open Access Journal |
| issn | 2242-4075 |
| language | English |
| last_indexed | 2024-12-13T11:51:39Z |
| publishDate | 2000-01-01 |
| publisher | Finnish Society of Forest Science |
| record_format | Article |
| series | Silva Fennica |
| spelling | doaj.art-d31504a7a386463caef9c561414fa5192022-12-21T23:47:20ZengFinnish Society of Forest ScienceSilva Fennica2242-40752000-01-0134310.14214/sf.629Displacement fields of wood in tension based on image processing: Part 1. Tension parallel- and perpendicular- to grain and comparisons with isotropic behaviourSamarasinghe, S.Kulasiri, G.Displacement fields for tensile loaded rubber and wood in parallel- and perpendicular-to-grain were obtained from digital image correlation. The results showed that the digital image correlation can reveal fine details of the nature of displacements in both rubber and wood. It was found that when load is perpendicular-to-grain, the lignin matrix produces uniform displacement fields similar to that of isotropic rubber. Uniform displacement fields also observed when lignin is involved in contraction due to Poisson effect in parallel-to-grain tension. However, when tracheids carry the load in parallel-to-grain loading, or are compressed in perpendicular-to-grain loading, a complex displacement pattern distorted by internal shear stress and slippage is produced.https://www.silvafennica.fi/article/629 |
| spellingShingle | Samarasinghe, S. Kulasiri, G. Displacement fields of wood in tension based on image processing: Part 1. Tension parallel- and perpendicular- to grain and comparisons with isotropic behaviour Silva Fennica |
| title | Displacement fields of wood in tension based on image processing: Part 1. Tension parallel- and perpendicular- to grain and comparisons with isotropic behaviour |
| title_full | Displacement fields of wood in tension based on image processing: Part 1. Tension parallel- and perpendicular- to grain and comparisons with isotropic behaviour |
| title_fullStr | Displacement fields of wood in tension based on image processing: Part 1. Tension parallel- and perpendicular- to grain and comparisons with isotropic behaviour |
| title_full_unstemmed | Displacement fields of wood in tension based on image processing: Part 1. Tension parallel- and perpendicular- to grain and comparisons with isotropic behaviour |
| title_short | Displacement fields of wood in tension based on image processing: Part 1. Tension parallel- and perpendicular- to grain and comparisons with isotropic behaviour |
| title_sort | displacement fields of wood in tension based on image processing part 1 tension parallel and perpendicular to grain and comparisons with isotropic behaviour |
| url | https://www.silvafennica.fi/article/629 |
| work_keys_str_mv | AT samarasinghes displacementfieldsofwoodintensionbasedonimageprocessingpart1tensionparallelandperpendiculartograinandcomparisonswithisotropicbehaviour AT kulasirig displacementfieldsofwoodintensionbasedonimageprocessingpart1tensionparallelandperpendiculartograinandcomparisonswithisotropicbehaviour |